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Epoxy-Coated Side-Polished Fiber-Optic Temperature Sensor for Cryogenic Conditions

We propose coating side-polished optical fiber (SPF) with epoxy polymer to form a fiber-optic sensor for cryogenic temperature measuring applications. The thermo-optic effect of the epoxy polymer coating layer enhances the interaction between the SPF evanescent field and surrounding medium, consider...

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Detalles Bibliográficos
Autores principales: Sampath, Umesh, Song, Minho
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10007048/
https://www.ncbi.nlm.nih.gov/pubmed/36905054
http://dx.doi.org/10.3390/s23052850
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author Sampath, Umesh
Song, Minho
author_facet Sampath, Umesh
Song, Minho
author_sort Sampath, Umesh
collection PubMed
description We propose coating side-polished optical fiber (SPF) with epoxy polymer to form a fiber-optic sensor for cryogenic temperature measuring applications. The thermo-optic effect of the epoxy polymer coating layer enhances the interaction between the SPF evanescent field and surrounding medium, considerably improving the temperature sensitivity and robustness of the sensor head in a very low-temperature environment. In tests, due to the evanescent field–polymer coating interlinkage, transmitted optical intensity variation of 5 dB and an average sensitivity of [Formula: see text] dB/K were obtained in the 90–298 K range.
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spelling pubmed-100070482023-03-12 Epoxy-Coated Side-Polished Fiber-Optic Temperature Sensor for Cryogenic Conditions Sampath, Umesh Song, Minho Sensors (Basel) Communication We propose coating side-polished optical fiber (SPF) with epoxy polymer to form a fiber-optic sensor for cryogenic temperature measuring applications. The thermo-optic effect of the epoxy polymer coating layer enhances the interaction between the SPF evanescent field and surrounding medium, considerably improving the temperature sensitivity and robustness of the sensor head in a very low-temperature environment. In tests, due to the evanescent field–polymer coating interlinkage, transmitted optical intensity variation of 5 dB and an average sensitivity of [Formula: see text] dB/K were obtained in the 90–298 K range. MDPI 2023-03-06 /pmc/articles/PMC10007048/ /pubmed/36905054 http://dx.doi.org/10.3390/s23052850 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Communication
Sampath, Umesh
Song, Minho
Epoxy-Coated Side-Polished Fiber-Optic Temperature Sensor for Cryogenic Conditions
title Epoxy-Coated Side-Polished Fiber-Optic Temperature Sensor for Cryogenic Conditions
title_full Epoxy-Coated Side-Polished Fiber-Optic Temperature Sensor for Cryogenic Conditions
title_fullStr Epoxy-Coated Side-Polished Fiber-Optic Temperature Sensor for Cryogenic Conditions
title_full_unstemmed Epoxy-Coated Side-Polished Fiber-Optic Temperature Sensor for Cryogenic Conditions
title_short Epoxy-Coated Side-Polished Fiber-Optic Temperature Sensor for Cryogenic Conditions
title_sort epoxy-coated side-polished fiber-optic temperature sensor for cryogenic conditions
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10007048/
https://www.ncbi.nlm.nih.gov/pubmed/36905054
http://dx.doi.org/10.3390/s23052850
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